diff --git a/Gemfile.lock b/Gemfile.lock
index 4a04e8e..bbb56a4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -91,7 +91,9 @@ GEM
     mime-types (3.3)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2019.1009)
-    mimemagic (0.3.3)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
     minitest (5.13.0)
@@ -106,7 +108,7 @@ GEM
     pg (1.1.4)
     public_suffix (4.0.1)
     puma (3.12.1)
-    rack (2.0.7)
+    rack (2.2.6.4)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails (5.2.3)
@@ -122,10 +124,6 @@ GEM
       bundler (>= 1.3.0)
       railties (= 5.2.3)
       sprockets-rails (>= 2.0.0)
-    rails-controller-testing (1.0.4)
-      actionpack (>= 5.0.1.x)
-      actionview (>= 5.0.1.x)
-      activesupport (>= 5.0.1.x)
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
@@ -219,7 +217,6 @@ DEPENDENCIES
   pg
   puma (~> 3.11)
   rails (~> 5.2.3)
-  rails-controller-testing
   responders
   rest-client
   rspec-rails